Cisco compatible extensions, version 4, Cisco compatible extensions, version 4 (ccxv4) – Intel 3945ABG User Manual

Page 82

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Prompt for the user name and password: Prompts for user name and password

before you connect to the wireless network. The user name and password must first be

set in the authentication server by the administrator.

Use the following user name and password: The user name and password must be

first set in the authentication server by the administrator.

User Name: This user name must match the user name that is set in the

authentication server.

Domain: Name of the domain on the authentication server. The server name

identifies a domain or one of its sub-domains (for example, zeelans.com, where

the server is blueberry.zeelans.com). NOTE: Contact your administrator to obtain

the domain name.

Password: This password must match the password that is set in the

authentication server. The entered password characters display as asterisks.

Confirm Password: Reenter the user password.

2. Click OK to save the settings and close the page. Server verification is not required.

Cisco Compatible Extensions, Version 4 (CCXv4)

To set up a client with EAP-FAST authentication with Cisco Compatible Extensions, version 4 (CCXv4):

1. Click Profiles on the Intel PROSet/Wireless main window.

2. On the Profile page, click Add to open the Create Wireless Profile Wizard's General Settings.

3. Wireless Network Name (SSID): Enter the network identifier.

4. Profile Name: Enter a descriptive profile name.

5. Operating Mode: Click Network (Infrastructure).

6. Click Next to open the Security Settings.

7. Network Authentication: Select WPA-Enterprise or WPA2-Enterprise.

8. Data Encryption: Select one of the following:

TKIP provides per-packet key mixing, a message integrity check and a rekeying mechanism.

AES-CCMP (Advanced Encryption Standard - Counter CBC-MAC Protocol) is used as the data

encryption method whenever strong data protection is important.

AES-CCMP

is recommended.

9. Data Encryption: Select AES-CCMP.

10. Enable 802.1x: Selected.

11. Authentication Type: Select EAP-FAST to be used with this connection.

Step 1 of 3: EAP-FAST Provisioning

With CCXv4, EAP-FAST supports two modes for provisioning:

Server-Authenticated Mode: Provisioning inside a server authenticated (TLS) tunnel.

Server-Unauthenticated Mode: Provisioning inside an unauthenticated (TLS) tunnel.

NOTE: Server-Authenticated Mode provides significant security advantages over Server-

Unauthenticated Mode even when EAP-MSCHAPv2 is being used as an inner method. This mode

protects the EAP-MSCHAPv2 exchanges from potential Man-in-the-Middle attacks by verifying the

server’s authenticity before exchanging MSCHAPv2. Therefore, Server-Authenticated Mode is

preferred whenever it is possible. EAP-FAST peer must use Server-Authenticated Mode whenever a

certificate or public key is available to authenticate the server and ensure the best security practices.

Provisioning of Protected Access Credentials (PAC):

EAP-FAST uses a PAC key to protect the user credentials that are exchanged. All EAP-FAST authenticators are

identified by an authority identity (A-ID). The local authenticator sends its AID to an authenticating client, and

the client checks its database for a matching AID. If the client does not recognize the AID, it requests a new PAC.

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